Articles
USE OF WILD SPECIES IN ORNAMENTAL PEACH BREEDING
Article number
1087_56
Pages
415 – 421
Language
English
Abstract
In Nikita Botanical Gardens breeding programmes are conducted based on a collection of 85 ornamental peach cultivars, 62% of which are derived from this institute.
To obtain disease resistant ornamental cultivars we used interspecific crossings of wild peach species: Prunus mira, P. davidiana and P. kansuensis. Under the conditions of the Crimea (Black Sea coast), these species exhibit a high resistance to major fungal diseases powdery mildew (Podosphaera spp.) and leaf curl (Taphrina deformans). Hybrid seedlings were obtained, which segregated for morphological and biological characteristics.
Their appearance had an intermediate character, but more inclined towards the wild species as reflected in height and habit of the tree, the growth vigour, the bark colour of the stems and shoots, shoot thickness, shape, size and colour of the calyx, and the length of the pedicle, the diameter and shape of the flower, the size and shape of the petals, the shape of the leaves, flowering period, resistance to fungal diseases, the duration of the dormancy period and other characteristics.
Following the selection and cultivar trials new original peach cultivars were released Zhisele, Solveig, Lel, Malenky Prince, Belosnezhka, Ruthenia, Freze Grant and Lyubava.
To obtain disease resistant ornamental cultivars we used interspecific crossings of wild peach species: Prunus mira, P. davidiana and P. kansuensis. Under the conditions of the Crimea (Black Sea coast), these species exhibit a high resistance to major fungal diseases powdery mildew (Podosphaera spp.) and leaf curl (Taphrina deformans). Hybrid seedlings were obtained, which segregated for morphological and biological characteristics.
Their appearance had an intermediate character, but more inclined towards the wild species as reflected in height and habit of the tree, the growth vigour, the bark colour of the stems and shoots, shoot thickness, shape, size and colour of the calyx, and the length of the pedicle, the diameter and shape of the flower, the size and shape of the petals, the shape of the leaves, flowering period, resistance to fungal diseases, the duration of the dormancy period and other characteristics.
Following the selection and cultivar trials new original peach cultivars were released Zhisele, Solveig, Lel, Malenky Prince, Belosnezhka, Ruthenia, Freze Grant and Lyubava.
Authors
L. Komar-Tyomnaya
Keywords
Prunus mira, P. davidiana, P. kansuensis, interspecific hybrids, peach cultivars, disease resistance
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